Coating-machine.



No. 302,745. PATENTED 08124, 1905 A.J.FORD.

COATING MACHINE.

APPLICATION FILED JUNE 6, 1904. RENEWED SEPT. 11. 1906.

TED STATES PATENT OFFT.

ALBERT J. FORD, OF NEW YORK, N. Y., ASSIGNOR TO FUCHS 85 LANG- MANUFAOTURING COMPANY, OF NEW YORK, N. Y., A CORPORA- TION OF NEW YORK.

COATINGWIVIACHINE.

Specification of Letters Patent.

Patented Oct. 24,1905.

To all whom it may concern.-

Be it known that I, ALBERT J. FORD, a citizen of the United States, residing at the city of New York, borough of Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Coating-Machines, of which the following is a specification.

The object of my invention is to provide a new and improved coating-machine for coating or covering metal sheets with varnish, or ground colors in oil or other suitable substance, or printingink, which machine is simple in construction and can readily be adjusted not to feed any ink, color, or varnish when metal sheets are not being fed through the same, thus preventing the supporting-roller of the machine from being covered with ink, color, or varnish, and thereby also preventing discoloring or disfiguring of the under sides of the metal plates by said supporting-roller and a waste of ink, color, or varnish.

In the accompanying drawings, in which like letters of reference indicate like parts in all the figures, Figure 1 is a side view of my improved coating-machine,parts being broken away. Fig. 2 is a front view of the same, parts being broken away. Fig. 3 is a detail view.

The machine is built upon and supported by a frame composed of two side supports A, united by rods A. An iron supporting-roller B for the sheets to be coated is journaled in boxes B, mounted to be adjusted or shifted vertically in guide-slots A of the supports A, and each box B is pivotally connected at its bottom with a connecting-rod O, the lower end of which is pivotally connected with a crankarm D, which crank-arm projects from the rock-shaft D, mounted in the supports A.

To one end of the rock-shaft D a handlearm E is secured, which is provided with a segmental slot E, concentric with the shaft D, and into said slot a pin E projects from the outer side of one of the supports A for the purpose of limiting the movements of the handle-arm, and consequently of the rockshaft D.

The connecting-rods C are made adjustable and preferably consist each of two end sections O, screwed into a middle section O From each journal-box B a bracket F projects, and in these brackets a rock-shaft F is mounted parallel with the roller B, and from said shaft a scraper-plate F extends to the periphery of the roller B, the scraper being secured to the under side of the shaft. The scraper-plate F is so disposed in relation to the roller B as to be inclined toward said roller in a direction which is the opposite of the direction of rotation-that is to say, the roller moves toward the edge of the inclined scraper in the direction from the free end of the scraper toward the fixed end of the same. From the top of the rock-shaft F two arms F extend in the direction from the roller B and at their free ends can contact with adjustable stops F secured in a suitable crosspiece F uniting two brackets A projecting from the supports A and supporting a feed-table (i.

A composition roller H is mounted in vertically-adjustable bearings H, guided in the supports A, and presses upward by springs H and downward by adjusting-screws H the roller H being mounted above the roller B and adapted to be in contact with the latter. An inking-roller box J contains inking-rollers J J in contact with each other, the roller J being in contact with the roller H. An inking fountain or pan (4 is located in the bottom of the box or frame, in which fountain the inking-roller J is immersed and by con tact inks the roller J which in turn transmits the ink to the roller 1-1. At each end of the two rollers J andJ a scraper 7) is located, which is in contact with the ends of the three rollers and is inclined from the top of the roller H toward the roller J, so as to extend across the ends of said rollers H, J, and J at or directly below the points of contacts of the rollers H and J and J and J. The surplus color is pressed between the two contact circumferential surfaces of the rollers toward the ends and passes into the scraper 6, down which it flows and drops back into the fountain, and thus prevents color dropping upon the other parts of the machine. The said scrapers bare suspended by arms cl from a transverse overhead shaft 0, to which they are attached, which shaft is adapted to rock in bearings f and can be locked in place by means of a screw 7 after proper adjustment of the scrapers.

The driving-shaft K carries the belt-pulleys K K and the pinion L at one end and the cogwheel M at the opposite end. The pinion L engages the cog-wheel N, secured on one end of the roller H outside of the journal-box. The cog-wheel N engages a pinion O on a stud O, projecting from one support A, and the pinion O engages a cog-wheel P on one end of the shaft of the upper roller H, which cogwheel P engages a cog-wheel Q on the upper inking-roller J and this cog-wheel engages a cog-wheel Q on the inking-roller J. Delivery-tapes R- pass over a roller T, mounted between the supports A.

A drip-pan Vis located beneath the roller B.

The operation is as follows: The metal sheets or plates to be coated are fed from the feed-table G between the rollers B and H, the face to be coated being uppermost. The ink or color transferred from the fountain to the composition roller H is transferred from the latter upon the upper surface of the metal sheet or plate, and the coated plate or sheet passes upon the delivery-tapes R and is carried ofi by the same. During the operation described the lower or supporting roller B is in raised position, and any ink or color that adheres to the same is scraped off by the scraper F and drips into the drip-pan V. When the machine is running idle-that is, when no sheets are being fedthe supporting-roller B must be lowered and brought out of contact with the upper or composition roller H, as otherwise ink or color would be constantly transferred upon the supporting-roller B from the composition roller H. To lower the supporting-roller, the handle-arm E is swung up- Ward, whereby the crank-arms D are swung downward and pull downward the connectingrods C and the roller B. During such clownward movement of the roller B the cog-wheel N rolls on the pinion L without being disen' gaged from the latter. At the same time the scraper-shaft F is moved downward and the scraper F is permitted to drop out of contact with the periphery of the roller B. To raise the roller B, the handle-arm E is swung downward, and at the same time the scraper-shaft F is raised, and as thereby the outer or free ends of the arms F are pressed against the stops F the edge of the scraper is pressed against the periphery of the roller B. The scraper is thus automatically engaged with and disengaged from the roller and the driving-gear, for the roller is not disengaged by raising or lowering said roller.

As the lower roller can be lowered, the entire machine can be thoroughly cleaned without detaching or removing any of the rollers from the machine.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1 In a machine for coating metal sheets with varnish or oil or similar colors, the combination with a composition roller and means for supplying the same with color, of a supporting-roller beneath the composition roller and movable toward and from the latter, a scraper mounted to move vertically with said vertically-movable roller and means for autofor supplying the same with ink, of a supporting-roller beneath the composition roller and a rock-shaft mounted to moveup and down with the vertically-adjustable roller, a scraper on said rock-shaft extending to said supporting-roller, arms on said shaft extending in the direction from saidsupporting-roller and stops with which said arms can contact, substantially as set forth.

3. In a machine for coating metal sheets with varnish, oil or similar colors, the combi nation with a composition roller and means for supplying the same with ink, of a supporting-roller beneath the composition roller, a rock-shaft for shifting said supporting-roller, cranks on the same, connecting-rods connecting said cranks with the journal-boxes of the supporting-roller, a handle-arm on said rockshaft, a cog-wheel on the vertically-adjustable supporting-roller, and a pinion engaging said cog-wheel and on which pinion said cogwheel is adapted to roll during the up and down movements of said roller, substantially as set forth.

4. In a machine for coating metal sheets with varnish or oil or similar colors, the combination with a composition roller, of a supporting-roller beneath the composition roller, a fountain, an inking-rollerwithin the fountain, a second inking-roller in contact with the inking-roller in the fountain and with the composition roller and a scraper extending across the ends of the two inking-rollers and the composition roller, at the oints of contact of said several rollers, substantially as set forth.

5. In a machine for coating metal sheets with varnish or oil or similar colors, the combination with a composition roller, of a supporting-roller beneath the composition roller, a fountain, an inking-roller within the fountain, a second inking-roller in contact with the inking-roller in the fountain and with the composition roller, a scraper extending across the ends of the two inking-rollers and the composition roller, at the points of contact of the several rollers, and means for adjusting said scrap er, substantially as set forth.

6. In a machine for coating metal sheets with varnish or oil or similar colors, the com bination with a composition roller, of a supporting-roller beneath the composition roller, a fountain, an inking-roller within the fountain, a second inking-roller in contact with nation with a supporting-roller, of a scraperplate having one edge in contact with the periphery of the said roller and mounted on a :5

suitable support and so disposed in relation to the roller that the roller in rotating moves toward the edge of the scraper in the direction. from the free end of the scraper toward the fixed end. of the same, substantially as 20 set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

ALBERT J. FORD.

Witnesses:

KURT ROHLAND, WILLIAM F. J. LEMMON. 

